Low-luminosity accretion of Be/X-ray pulsar MAXI J1409-619

被引：0

作者：

Ghimiray, Monika ^{[1
]}

Sharma, Pankaj ^{[2
]}

Subba, Nishika ^{[3
]}

机构：

[1] Natl Ctr Nucl Res, Dept High Energy Phys, Ul Pasteura 7, PL-02093 Warsaw, Poland

[2] North Bengal Univ, Dept Phys, Darjeeling 734013, W Bengal, India

[3] Sikkim Manipal Univ, Dept Phys, East Sikkim 737136, Sikkim, India

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2024年 / 531卷 / 03期

关键词：

accretion; accretion discs; stars: neutron; pulsars: individual: MAXI J1409-619; X-rays: binaries; NEUTRON-STARS; X-RAYS; PERIOD; PROFILES; BINARIES; FITS;

D O I：

10.1093/mnras/stae1369

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

This paper used Nuclear Spectroscopic Telescope Array observations to examine the temporal and spectral features of the Be/X-ray binary pulsar MAXI J1409-619. The timing analysis of the light curve finds the pulsation of the source at (501.23 +/- 0.01) s. The pulse profile of the source in various energy bands was analysed and showed weak dependence on energy exhibiting asymmetric character and generally suggests a source accretion in the subcritical regime. The variation of pulse fraction with photon energy in general shows an increasing trend. Assuming a distance of 14.5 kpc, we calculated the 3-30 keV source luminosity to be similar to 6.13 x10(34) ergs(-1). The long-term spin evolution of the source was carried out, where the source underwent torque reversal.

引用

页码：3386 / 3390

页数：5

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